This month marks 90 years since one of Montana's most destructive recorded seismic events. For months, Helena shook. Hundreds of buildings and homes were destroyed, and four people died as a result.

History of the 1935 Helena Earthquake - Click here for the full story

At the time, the Big Shake of 1935 was the fifth most destructive earthquake in U.S. history. Marian Davidson breaks down what happened 90 years ago and hears from residents who lived through the event.

Memories of The Big Shake - Click Here for he full story

Not many people still remember the Big Shake of 1935, but the stories live on through historical documentation and stories shared with children and grandchildren. Here are a few of those stories that viewers shared with MTN.

The science of earthquakes in the Helena

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